Guus Koevermans defeated Filip Kraljevic 6-4 6-1 in the USA F28 qualifying round of 64 on hard.
Koevermans G. took it in straight sets.
Guus Koevermans beat Filip Kraljevic 6-4 6-1. Umpiry, "Guus Koevermans vs Filip Kraljevic — USA F28 Qualifying Round of 64", https://umpiry.com/match/2016-09-12/koevermans-vs-kraljevic-usa-f28-q64?utm_source=cite (as of 12 September 2016).